CN200986214Y

CN200986214Y - Temperature control flap for gas warming machine

Info

Publication number: CN200986214Y
Application number: CN 200620057340
Authority: CN
Inventors: 黄桂荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-03
Filing date: 2006-04-03
Publication date: 2007-12-05
Anticipated expiration: 2016-04-03

Abstract

The utility model relates to a simply structured and easily used temperature control valve for gas heater. The valve comprises a valve body, a valve cover and a temperature sensing bag. Characteristically, the valve body is provided with a gas supply cavity, a gas exhausting cavity and a control cavity. Wherein, the gas supply cavity is communicated with air inlet, and the gas exhausting cavity is communicated with air outlet. The control cavity is arranged between the gas supply cavity and the gas exhausting cavity. Form inside to outside, the control cavity is provided with a pressure adjusting screw rod, a positioning screw rod, a corrugated pipe, a spring frame and a pushing rod. The positioning screw rod is fixed on the valve body, and the pressure adjusting screw rod is connected with the positioning screw rod. Inner space of the corrugated pipe is communicated with the temperature sensing bag and filled with temperature sensing liquid. Spring is arranged between the spring frame and bottom of the control cavity. Outer end of the pushing rod is fixed on the spring frame, and inner end is inserted in the gas exhausting cavity and connected with a lever. A moveable end in the lever of the gas exhausting cavity controls opening and closing of the control valve.

Description

Combustion gas warming machine temperature control valve

Technical field

The utility model relates to a kind of valve, particularly a kind of combustion gas warming machine temperature control valve.

Background technology

Existing combustion gas warming machine in use, the size of its air valve is controlled by hand, manually the opening of air valve is turned down or is closed when indoor temperature is too high, otherwise transfer big or reopen, so there is inconvenient problem with use in existing combustion gas warming machine.

Summary of the invention

The purpose of this utility model is the inconvenient problem with use that exists in the existing combustion gas warming machine in order to solve, and a kind of combustion gas warming machine temperature control valve simple in structure, easy to use is provided.

Technical scheme:

The purpose of this utility model is achieved in that a kind of combustion gas warming machine temperature control valve, comprise valve body, valve gap and temperature-sensitive bag, it is characterized in that being provided with in the described valve body air feed chamber, outlet chamber and control chamber, wherein the air feed chamber communicates with air inlet, outlet chamber communicates with the gas outlet, is provided with control valve between air feed chamber and outlet chamber; Control chamber is provided with screw press, set screw, bellows, spring support and push rod from outside to inside, wherein set screw and valve body are fixed, screw press is threaded with set screw, the bellows inner chamber communicates with the temperature-sensitive bag and is filled with temperature sensing liquid, be provided with spring between spring support and the control chamber bottom, link to each other with lever in the outlet chamber that the push rod outer end is fixed with spring support, valve body is stretched in the inner; The movable end that is positioned at the lever of outlet chamber is controlled the open and close of described control valve.During use, temperature sensing liquid in temperature-sensitive bag and the bellows varies with temperature and produce different pressure in bellows, after pressure increases to the spring force that bellows can overcome spring support and control chamber bottom, promote push rod by spring support, make push rod control lever action closed control valve, when temperature drops to one regularly, pressure in the bellows descends, the pressure that spring in the control chamber overcomes bellows returns lever and opens control valve, combustion gas in the air feed chamber is through control valve, outlet chamber is delivered to the combustion furnace burning, to improve indoor temperature, regulate the position of screw press and can regulate the operating temperature of the stressed size of bellows with adjusting control valve.

Described combustion gas warming machine temperature control valve, it is characterized in that described control valve comprises the slide block that is positioned at the air feed chamber, outer spool, inner spool, seals screw and spring, outer spool entangles inner spool, inner spool and outer spool are respectively and seal and be provided with spring between the screw, opening between outer spool and control chamber and the outlet chamber constitutes and constitutes little control valve between big control valve, inner spool and the outer spool, outer spool is provided with slide block towards outlet chamber one end, and described lever is controlled the little control valve of mobile realization of inner spool and outer spool and opening or closing of big control valve by this slide block.During use, lever swing moves to promote inner spool slide block and moves with respect to outer spool and realize that little control valve opens in control chamber, make combustion furnace be in little fiery state, lever continues after the control chamber direction moves, the outer spool of slide block drive also moves in control chamber big control valve is also opened, combustion furnace is in the big fire state, when bellows moved, after lever oppositely resetted, outer spool resetted and closes big control valve, make combustion furnace return little fiery state, if temperature continues to rise, then lever continues to the swing of outlet chamber direction, and inner spool also resets and closes little control valve, if instead temperature descends, then reopen big control valve.

Described combustion gas warming machine temperature control valve is characterized in that being provided with shell fragment between described slide block and the inner spool.When moving, slide block makes the inner spool action by shell fragment.

Described combustion gas warming machine temperature control valve is characterized in that being provided with between described air feed chamber and the air inlet air feed main valve.Control the ever-burning flame igniting of combustion furnace when the air feed main valve is opened simultaneously, benefit is after the air feed main valve is opened, and is controlled the duty of combustion furnace automatically by described control valve.

Described combustion gas warming machine temperature control valve is characterized in that the switching knob of described air feed main valve is provided with the gear mesh of gear and described screw rod outer end.The direct operating temperature of adjusting control valve door when effect is the by-pass cock knob.

Described combustion gas warming machine temperature control valve, it is characterized in that described air feed main valve is made up of thermocouple, coil, jacking block, total spool, limited block and spring, gear on the described switching knob is located on the limited block, switching knob with limited block coaxial and both can move axially relatively, limited block is provided with the platform of indent, the platform periphery is provided with the block that can swing, and the axial end of block is centroclinal to described limited block.

Beneficial effect:

Owing to adopted technical scheme described in the utility model, people are when using the combustion gas warming machine, after only need opening the control main valve and regulating the temperature of required control, temperature control valve on the warming machine can be controlled combustion furnace automatically according to indoor temperature and be operated in big fire, little fire or closed condition, do not need artificial control, use the utmost point convenient, and this is simple in structure, cost is low.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the cut-away view of combustion gas warming machine described in the utility model with temperature control valve.

Fig. 2 is the view of the utility model combustion gas warming machine with another cutting plane of temperature control valve.

Fig. 3 is that enlarged drawing is looked on the right side of limited block and switching knob among Fig. 2.

Among the figure 1, valve body, 103, outlet chamber, 32, slide block, 332, shell fragment, 30, cushion rubber, 3, outer spool, 33, inner spool, 102, the air feed chamber, 31, seal screw, 330, head, 331, spring, 13, gear, 12, screw press, 11, set screw, 101, control chamber, 2, bellows, 333, spring, 14, push rod, 150, fulcrum, 15, lever; 4, coil, 40, spring, 41, jacking block, 42, total spool, 431, spring, 43, push rod, 430, slide bar, 10, valve gap, 44, spring, 45, card is situated between, 52, switching knob, 601, the indent platform, 7, connect piece, 521, compression leg, 71, torsion spring, 6, limited block, 51, gear, 104, the chamber of supplying gas, 105, air inlet; 600, platform, 70, pivot, 700, axial end, 602, limiting stand.

The specific embodiment:

See shown in Figure 1, described combustion gas warming machine temperature control valve, comprise valve body 1, valve gap 10 (Fig. 2) and temperature-sensitive bag (not drawing among the figure), be provided with air feed chamber 102 in the valve body 1, outlet chamber 103 and control chamber 101, outlet chamber communicates with the gas outlet, between air feed chamber 102 and outlet chamber 103, be provided with by slide block 32, outer spool 3, inner spool 33, be fixed on the shell fragment 332 on the slide block 32, seal screw 31 and spring 331,333 control valves of forming, its China and foreign countries' spool 3 entangles inner spool 33, spring 333 is located at and seals between screw 31 and the outer spool 3, spring 331 is located at inner spool 33 and seals between the screw 31, and the elastic force of spring 333 is greater than the elastic force of spring 331; Control chamber 101 is provided with screw press 12, set screw 11, bellows 2, spring support and push rod 14 from outside to inside, wherein set screw 11 usefulness screw threads and valve body 1 are fixing, screw press 12 is threaded with set screw 11, the inner chamber of bellows 2 communicates with the temperature-sensitive bag and is filled with temperature sensing liquid, be provided with spring between spring support and the control chamber bottom, link to each other with lever 15 in the outlet chamber 103 that push rod 14 outer ends are fixed with spring support, valve body is stretched in the inner, the effect of lever 15 drawn stems 14 can control slide block 32 motions with fulcrum 150 swings.

See shown in Figure 2, described combustion gas warming machine temperature control valve, also be provided with the air feed main valve of forming by thermocouple (do not draw among the figure---be used for providing the adhesive power supply), coil 4, jacking block 41, total spool 42, limited block 6, switching knob 52 and spring 40,431,44 to coil 4, limited block 6 be provided with Fig. 1 in the meshing gear 51 of gear 13.The chamber 104 of supplying gas among Fig. 2 communicates with air feed chamber 102 among Fig. 1.

Operation principle, to be the combustion gas warming machine be in state when closing with temperature control valve to state shown in Figure 2, push rod 43 outer ends are dropped on the indent platform 601 of limited block 6 under the effect of card Jie 45 and spring 44, this moment, push rod 43 outer ends can only be moved in the scope of indent platform 601 during rotary switch knob 52, and always spool 42 all the time with air inlet 105 and the passageway shuts off between the chamber 104 of supplying gas; Have only switching knob 52 is rotated to compression leg 521 outer ends after push rod 43 outer ends (this moment, the push rod outer end was positioned at indent platform 601 1 sides---see shown in Figure 3), depress switch knob 52, move to coil 4 directions at compression leg 521 effect lower push rods 43, by slide bar 430 jacking block 41 is contacted with coil 4, total spool 42 is opened, make the combustion gas of air inlet 105 enter the chamber 104 of supplying gas, the combustion furnace of controller control is simultaneously lighted ever-burning flame, after being heated, thermocouple lives jacking block 41 with adhesive to coil 4 power supplies, in this process, cross the scope of block 7 when the push rod outer end after, block 7 is that the center is flapped toward that extreme direction prevention push rod resets push rod outside with pivot shown in Figure 3 70 under torsion spring 71 effect, behind the hand that unclamps depress switch knob 52, push rod is positioned at the push rod outer end when outwards resetting under spring 44 effect block 7 blocks and slip into limited block shown in Figure 36 platforms 600 places under axial end 700 effect of block, though this moment, total spool 42 separated with jacking block 41, but total spool 42 can be opened under the effect of spring 431, the combustion gas that enters the chamber 104 of supplying gas (chamber 104 of supplying gas communicates with air feed chamber 102 among Fig. 1) through air inlet 105 can enter the air feed chamber 102 among Fig. 1, the combustion gas in air feed chamber 102 through inner spool 33 and outside between the spool 3 the gap and outside gap between spool 3 and the air feed chamber 102 enter outlet chamber 103 and burn to the main burning furnace air feed, be the big fire state this moment, after the temperature height of temperature-sensitive bag arrives to a certain degree, when the expansive force of bellows 2 is enough big, bellows 2 moves to push rod 14 directions that to make lever 15 be that swing clockwise in the axle center with fulcrum 150, outer spool 3 resets under spring 333 effect and the gap between spool 3 and the air feed chamber 102 outside closing (outer spool 3 push down cushion rubber 30 and seal), combustion furnace is in little fiery state, two kinds of situations appear this moment, the one, when temperature drops to one regularly, bellows 2 resets, lever reopens outer spool 3, make combustion furnace return the big fire state, the 2nd, if when combustion furnace is in little fiery state, temperature continues to rise, then bellows continues to the motion of push rod direction the lever lower end to be separated fully with slide block 32, inner spool 33 moves to the slide block direction under spring 331 effects, little control valve is also closed (sealing compound at head 330 places of inner spool push down outer spool and seal), and this moment, combustion furnace was in closed condition---but this moment, ever-burning flame also was in fired state.See Fig. 1, at this moment, the gear 51 that rotary switch knob 52 can drive on the limited block 6 rotates, thereby the gear 13 that drives among Fig. 1 rotates, and makes screw rod 12 rotate the stress of regulating bellows 2 with gear 13 and regulates its operating temperature; In said process, if combustion furnace and ever-burning flame accident are extinguished, then thermocouple can not be powered by the coil 4 in Fig. 2, and jacking block 41 total spool 42 of promotion under spring 40 effects overcomes the elastic force of spring 431 and closes.In the time of will closing complete machine under the normal condition, clockwise rotate switching knob 52 by direction shown in Figure 3, when 43 outer ends of the push rod among Fig. 2 fall into the axial end 700 of block 7 of Fig. 3, because axial end 700 is intilted, so block 7 is outwards put under push rod pressure---Figure 3 shows that with pivot 70 to be that the center clockwise rotates, make push rod 43 outer ends can fall in the indent platform 601 again, push rod 43 drives total spool 42 by slide bar 430 and cuts out, ever-burning flame extinguishes, power supply on the coil 4 disappears, and jacking block 41 resets under spring 40 effects.

Claims

1, a kind of combustion gas warming machine temperature control valve, comprise valve body, valve gap and temperature-sensitive bag, it is characterized in that being provided with air feed chamber, outlet chamber and control chamber in the described valve body that wherein the air feed chamber communicates with air inlet, outlet chamber communicates with the gas outlet, is provided with control valve between air feed chamber and outlet chamber; Control chamber is provided with screw press, set screw, bellows, spring support and push rod from outside to inside, wherein set screw and valve body are fixed, screw press is threaded with set screw, the bellows inner chamber communicates with the temperature-sensitive bag and is filled with temperature sensing liquid, be provided with spring between spring support and the control chamber bottom, link to each other with lever in the outlet chamber that the push rod outer end is fixed with spring support, valve body is stretched in the inner; The movable end that is positioned at the lever of outlet chamber is controlled the open and close of described control valve.

2, according to the described combustion gas warming machine of claim 1 temperature control valve, it is characterized in that described control valve comprises the slide block that is positioned at the air feed chamber, outer spool, inner spool, seal screw and spring, outer spool entangles inner spool, inner spool and outer spool are respectively and seal and be provided with spring between the screw, opening between outer spool and control chamber and the outlet chamber constitutes big control valve, constitute little control valve between inner spool and the outer spool, outer spool is provided with slide block towards outlet chamber one end, and described lever is controlled the little control valve of mobile realization of inner spool and outer spool and opening or closing of big control valve by this slide block.

3, according to the described combustion gas warming machine of claim 2 temperature control valve, it is characterized in that being provided with shell fragment between described slide block and the inner spool.

4,, it is characterized in that being provided with between described air feed chamber and the air inlet air feed main valve according to the described combustion gas warming machine of claim 1 temperature control valve.

5,, it is characterized in that the switching knob of described air feed main valve is provided with the gear mesh of gear and described screw rod outer end according to the described combustion gas warming machine of claim 4 temperature control valve.

6, according to the described combustion gas warming machine of claim 5 temperature control valve, it is characterized in that the gear on the described switching knob is located on the limited block of air feed main valve, switching knob with limited block coaxial and both can move axially relatively, limited block is provided with the platform of indent, the platform periphery is provided with the block that can swing, and the axial end of block is centroclinal to described limited block.